DEV Community

Cover image for Secure RHEL with Firewall-CMD, SSH Key-Based Auth, and Autofs Automation
Labby for LabEx

Posted on

Secure RHEL with Firewall-CMD, SSH Key-Based Auth, and Autofs Automation

Ready to level up your Linux game? Red Hat Enterprise Linux (RHEL) is the backbone of the corporate world. Whether you are a budding sysadmin or a DevOps pro, mastering RHEL is a career-defining move. At LabEx, we have curated a hands-on path that skips the long videos and puts you straight into the terminal. Let's dive into four quick labs that will sharpen your enterprise management skills in minutes.

Configure Firewall Using Firewall-CMD/Firewalld

Configure Firewall Using Firewall-CMD/Firewalld

Difficulty: Beginner | Time: 5 minutes

In this challenge, you will learn how to configure the firewall using the firewall-cmd and firewalld commands on a Red Hat Enterprise Linux system.

Practice on LabEx → | Tutorial →

Configure Hostname Resolution

Configure Hostname Resolution

Difficulty: Beginner | Time: 10 minutes

In this challenge, you will learn how to configure hostname resolution on a Linux system, including static and dynamic hostname resolution.

Practice on LabEx → | Tutorial →

Configure Key-Based Authentication for SSH

Configure Key-Based Authentication for SSH

Difficulty: Beginner | Time: 10 minutes

In this challenge, you will learn how to configure key-based authentication for SSH, a more secure alternative to password-based authentication.

Practice on LabEx → | Tutorial →

Configure Autofs

Configure Autofs

Difficulty: Beginner | Time: 5 minutes

In this challenge, you will configure the autofs service to automatically mount a remote NFS share on demand. This is a common task for system administrators to provide seamless access to network resources.

Practice on LabEx → | Tutorial →

RHEL mastery is built one command at a time. These four labs offer a fast-track to understanding security, networking, and automation in a professional environment. Don't just read about it—get into the lab, break things, fix them, and build your confidence. Your journey to becoming a Red Hat expert starts right here!

Top comments (0)